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Air sampling protocol document, 130 Cedar Street, Jan 2005

Machine-extracted title · confidence 100%

Protocol document outlining air sampling and monitoring procedures for 130 Cedar Street.

NYC-WTC_000125098–000125202

Folder label: “130 CEDAR STREET

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NYC 9/11 Public Portal Document

130 Cedar Street July 15, 2004 Selective Demolition and Façade Restoration Koenen Associates

B. Anchors and Ties

1. Wire Mesh: Galvanized sixteen (16) gauge steel wire, 1/4" square mesh, width •

1/2" less than wall thickness, by length to suit condition.

2. For anchoring masonry to structural steel provide anchors equal to No. 355 and 357 hot-dip galvanized steel anchors made by Hohmann & Barnard or approved equal. Galvanizing shall conform to ASTM A-153, with zinc coating of 1.5 oz. of zinc per sq. ft.

3. Approved Manufacturers: Heckmann Building Products, Hohmann & Barnard, Inc., National Wire Products Industries, Inc., Dur-O-Wall or approved equal.

C. Control Joint Filler

1. Vertical Installation Within Concrete Masonry Wall: Extruded high grade neoprene rubber, cross shape, for use with concrete masonry sash units, which shall provide a force fit in the grooves of the sash block, and shall have 1/2" diameter tubular ends (compressed 25% when Installed in 3/8" wide joint).

a. Provide the following sizes 1) 2-5/8" wide control joint fillers 4" block walls.

2) 4-5/8" wide for 6" block walls.

3) 6-5/8" wide for 8",10" and block walls.

b. Provide backer rod and sealant joint over joint filler as per drawings and Section 07900 of these specifications. •

2. Isolation Joint Filler at Abutting Construction and at Intersecting CMU Walls: Compressible and resilient closed cell neoprene gasket with pressure sensitive adhesive backing, thickness 30% greater than thickness of joint. Acceptable joint filler shall be "Everlastic, Type NN-1" by Williams Products, Inc., or approved equal. Recess joint filler and install backer rod and sealant as per drawings and Section 07900 of these specifications.

D. Through Wall Flashing

1. Provide sixty(60) mils thick uncured neoprene flashing material as manufactured by Emseal. "Perm-A-Barrier" forty (40) mils thick self -adhering through wall flashing made by W.R. Grace shall be an acceptable equal. 2. Provide Manufacturer's recommended cleaner, primer and adhesive to be used In conjunction with flashing material.

2.02 MORTAR MATERIALS

A. Portland Cement ASTM C150 Type 1, standard color, one source. B. Hydrated Ume: ASTM C207, Type S, as manufactured by Corsons, or approved equal. C. Sand: Clean, washed, buff colored sand, graded per ASTM C144. D. Water Clean, fresh and suitable for drinking.

2.03 MORTAR MIX

Unit Masonry 04200-3

NYC-WTC 000125160

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NYC-WTC_000125160Source: NYC Law Department, mirrored locally

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